振动工况下过冷流动沸腾界面参数实验研究  

Experimental Study of Interfacial Parameters in Subcooled Flow Boiling Under Vibration Conditions

作　　者：杜静宇 Dang Zhuoran Zhao Yang 赵陈儒[1] 薄涵亮[1] Ishii Mamoru DU Jing-Yu;DANG Zhuo-Ran;ZHAO Yang;ZHAO Chen-Ru;BO Han-Liang;ISHII Mamoru(Institute of Nuclear and New Energy Technology,Tsinghua University,Beijing 100084,China;Purdue University,West Lafayette 57906,USA)

机构地区：[1]清华大学核能与新能源技术研究院,北京100084 [2]Purdue University,West Lafayette USA 57906

出　　处：《工程热物理学报》2020年第7期1765-1770,共6页Journal of Engineering Thermophysics

基　　金：清华大学短期出国访学基金(No.2018146)。

摘　　要：过冷流动沸腾中局部时均界面参数对发展两流体模型十分重要,而振动工况下过冷流动沸腾的界面参数变化很少有文献报道。本研究采用四探头电导探针分别对静止工况和低频水平振动工况下环管内过冷流动沸腾的时均空泡份额、界面面积浓度和汽泡平均直径进行了测量,并且研究了不同流动工况对局部参数在径向位置处分布的影响。实验发现,低频水平振动对局部时均参数的影响比较有限,局部时均空泡份额和界面面积浓度略有下降,汽泡直径分布出现轻微波动。The local time-averaged interfacial parameters in subcooled flow boiling are significant in the development of two-fluid model,while the changes of parameters under vibration conditions are rarely reported in the literature.In this study,four-sensor conductivity probes were adopted to measure the time-averaged void fraction,interfacial area concentration and bubble mean diameter in subcooled flow boiling in an annulus under both static and low-frequency horizontal vibration conditions respectively.The influences of different flow conditions on the distribution of local parameters in radial position were studied.It is found that the influences of low-frequency horizontal vibration on local time-averaged parameters are very limited since the local time-averaged void fraction and interfacial area concentration decrease slightly and the bubble diameter distribution fluctuates slightly.

关 键 词：四探头电导探针 过冷流动沸腾 界面参数 振动工况 

分 类 号：TK124[动力工程及工程热物理—工程热物理]